When comparing Rhythmbox vs MOC - Music On Console, the Slant community recommends Rhythmbox for most people. In the question“What are the best music players for Linux?”Rhythmbox is ranked 11th while MOC - Music On Console is ranked 15th. The most important reason people chose Rhythmbox is:

Rhythmbox has built-in support for users so that they can add their own streaming audio / internet radio channels.

Pros

Pro

Internet radio

Rhythmbox has built-in support for users so that they can add their own streaming audio / internet radio channels.

Pro

Loads of Features

Rhythmbox allows you to extract CDs to MP3s while listening, and you can also burn CDs from playlists. You can listen to Last.fm and podcasts through Rhythmbox, which has support for lyrics and more.

Pro

Plugins add only the features you want

Rhythmbox has built-in support for first and third party plugins. Instead of adding a bunch of features not everyone will use, you can download just the plugins that you want.

Pro

Podcast management

Rhythmbox features built-in podcast management.

Pro

Good organization

Music can be browsed by the usual artist and album, but Rhythmbox also allows for genres which aren't supported by all music players.

Pro

Works in console only

There's no need for X server when using MOC.

Pro

Works as a daemon

MOC can be run (and later controlled) totally in the background.

Pro

Playlists

MOC handles playlists and it can play custom playlists ad-hoc. Also, after it has finished, it can resume playing the original playlist.

Cons

Con

No folder browse/add-to-playlist view

So few music players seem to let you browse by your directory structure and add songs to a playlist that way. That's unfortunate because it's a really useful feature and eliminates the problem of mistagged music.

Con

Still no built-in equilizer

Rhythmbox has been around for a good while now and yet there is still no default built-in equalizer. An equalizer allows users to tweak the audio to their preference. It can also help compensate for hardware (for example, lots of headphones are bass heavy, but to get a more balanced sound an equalizer can tune the bass down a touch).

Con

No album artist field

Most other modern music players come with an Album Artist Field when sorting music. Collaboration is very common these days and often a song would feature multiple artists, but sometimes it's easier to just sort for Album Artists. It's a rather simple feature, yet Rhythmbox has repeatedly shot down its users for making that request.